topic Re: Using IMX6D with 24 but parallel bus for full HD resolution in i.MX Processors

Using IMX6D with 24 but parallel bus for full HD resolution

semirfazlagic — Thu, 19 Feb 2015 13:45:28 GMT

We are in phase of evaluating IMX6D Lite for our application.

Due to space restriction, we intend to use LPDDRAM2 (dual channel in one body).

We indent to use only 24bit parallel interface

In data sheet is noted support up to (2 x 1366 x 768), meanwhile in IMX6 Solo/Dual Lite ref manual

is written (chapter 38.1.2.1.2 Display Ports) :

Parallel video interface (for synchronous access) - up to 24-bit data bus.
• Compatible with MIPI-DPI standard .
• Control protocol - follows Sharp HR and generic TFT definitions
• Supports BT.656 (8-bit) and BT.1120 (16-bit) protocols
• Supports HDTV standards SMPTE274 (1080i/p) and SMPTE296 (720p)

For synchronous access with one cycle/pixel, this enables, e.g (including 35% blanking
intervals)
• 1080p (1920x1080) @ 60 fps
• WSXGA+ (1680x1050) @ 60 fps
• The combined rate for the two ports is up to 240 MP/sec
The interface includes the following additional features:
• Screen size: up to 4096 x 2048 pixels, programmable by software.

Now I am not sure. Can anyone confirm that I can have at 24 bit RGB full HD (1920 x 1080) at RGB parallel port?

Does using LPDDRAM2 instead of DDRAM3 could impact it ?

Thank in advance

Re: Using IMX6D with 24 but parallel bus for full HD resolution

SergioSolis — Tue, 24 Feb 2015 16:40:05 GMT

Hello Semir,

Are you using the latest datasheet available?:

http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6SDLCEC.pdf

Please take a look at page 5, you can have:

One Parallel 24-bit display port, up to 225 Mpixels/sec (for example, WUXGA at 60 Hz or dual HD1080 and WXGA at 60 Hz)

Have a great day,
Sergio

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Re: Using IMX6D with 24 but parallel bus for full HD resolution

semirfazlagic — Wed, 25 Feb 2015 11:46:34 GMT

OK Sergio thank you

Yes I read this, but I had also some other documents (for example one flayer with comparation various IMX6) where I had this info.
I think anyway it is offical specification.

Regards